B. Do the following questions: (for more practice for 8.5, do questions on pg 184, 8.6 do questions on pg 186, 8.7 do questions 189)
1. How many flourine atoms are in 1.00 mol of F? How many flourine atoms are in 1.00 mol of F2?
2. (After looking over examples from 8.5)For the element nickel, find the mass of (a) 4.00 mol of Ni (b) .250 mol Ni.
3. (After reading over #7,8 in 8.6) What is the mass of 3.0 mol of NaOH?
4. Given a 101g sample of Fe3O4: (a) How many moles are in this sample? (b) How many formula units are present?
5. (After looking at #9 in 8.7) A sample of N2 is composed of 3.01 x 1023 molecules. What is the mass of the sample?